JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech III COMPUTER ORGANIZATION Previous Question Paper (February - 2023 - R16)
Note: i) Question paper consists of Part A, Part B. ii) Part A is compulsory, which carries 25 marks. In Part A, Answer all questions. iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
PART - A
What is a control word?
Answer
A control word is a specific bit pattern or binary string stored in a control register that determines the operation of a processor or a hardware component. It acts as a set of instructions for the control unit, specifying which data paths to enable, which operations (such as arithmetic or logic) to perform, and how to sequence the flow of data between registers and functional units during a single clock cycle.
Define computer architecture.
Answer
Computer architecture refers to the conceptual structure and functional behavior of a computer system as perceived by the programmer. It defines the attributes of a system that have a direct impact on the logical execution of a program, such as the instruction set, the number of bits used for data representation, I/O mechanisms, and addressing techniques.
Essentially, it acts as the interface between the hardware components and the software, specifying how the system is designed to perform tasks and how its various parts interact to execute instructions efficiently.
What is HALT instruction?
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Explain segment registers of 8086 processor.
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What is a macro?
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Write about interrupt service routine.
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What is Divide overflow?
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What is handshaking Protocol?
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What is MIMD?
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Write about locality of reference.
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PART - B
Explain block diagram of digital computer with a neat sketch.
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Describe various registers in control unit and mention their purpose.
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What is an interrupt? Explain interrupt cycle in detail.
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Explain micro program sequencer in detail.
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List and explain flag registers of 8086 processor.
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What are the signals of 8086 processor and explain each signal.
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Explain addressing modes in 8086 processor.
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Elaborate conditional branch instructions in 8086 processor.
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What is maskable interrupt? Explain it in detail.
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Give Assembly language code for adding two numbers.
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Write macro to find CUBE of a number in Assembly language.
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Describe the stack structure of 8086 processor.
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Explain Booth’s algorithm in detail.
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Draw flow chart to add two signed magnitude numbers.
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Compare Program initiated Vs Interrupt Initiated I/O.
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Explain the steps for multiplying two float numbers.
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Compare RAM Vs ROM.
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Explain arithmetic pipelining with a flow chart.
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Describe the need for cache memory in detail.
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Write the characteristics of multiprocessor system.
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